The Proof Research Carbon Fiber Sendero Barrel (brand part number 101056) is a chambered and finished 26-inch, .338-caliber barrel finished in black, wrapped in aerospace-grade carbon fiber over a 416R stainless steel core. Machined by Proof Research with a 1:9.4 twist rate in the standard Sendero contour, this extended-length barrel runs up to 64% lighter than a traditional steel barrel of similar contour, giving big-bore, long-range shooters real weight savings without sacrificing match-grade accuracy.

Key Specifications

• Chambered for .338-caliber cartridges at the customer’s chosen specification.
• Barrel length is 26 inches.
• Twist rate is 1:9.4.
• Constructed from 416R stainless steel wrapped in carbon fiber.
• Finished in black.
• Contour is Sendero, up to 64% lighter than a comparable steel barrel.
• Sold as a finished, chambered barrel rather than an unchambered blank.

Frequently Asked Questions

Does this barrel still need a gunsmith? This barrel is sold finished and chambered rather than as a raw blank; confirm fitment to your specific action with a qualified gunsmith before installation.

How much lighter is this than a steel barrel? Proof Research’s carbon-fiber-wrapped construction runs up to 64% lighter than a traditional steel barrel of similar contour.

Buy the Proof Research .338 Caliber Sendero Barrel

Cut real weight from a big-bore, long-range build without giving up accuracy. Order this rifle barrel from our Lubbock, Texas gun shop for fast, insured shipping to your door.